If C = {integers divisible by 2 from 1 to 25} and D = {integers divisible by 6 from 1 to 30}, what is C ∩ D?

{ }

{2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 30}

{6, 12, 18, 24, 30}

{6, 12, 18, 24}
i think its B but im not sure

Question

If C = {integers divisible by 2 from 1 to 25} and D = {integers divisible by 6 from 1 to 30}, what is C ∩ D?

 { }

 {2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 30}

 {6, 12, 18, 24, 30}

 {6, 12, 18, 24}
 i think its B but im not sure

btaylor · Answer

the intersection would be all integers between 1 and 25 that are divisible by 6. so it is C.

jim_thompson5910 · Answer

choice C has the number 30 in it...but 30 is NOT in the set {integers divisible by 2 from 1 to 25}

jim_thompson5910 · Answer

so it can't be choice C

btaylor · Answer

oops...D then

anonymous · Answer

and one more whats a domain again?

jim_thompson5910 · Answer

domain = set of all possible inputs to a function or relation

anonymous · Answer

The domain of the following relation: R: {(3, 5), (8, 6), (2, 1), (8, 6)} is

 No domain exists

 {1, 5, 6}

 {3, 8, 2, 8}

 {2, 3, 8}
 so it would be c?

btaylor · Answer

the domain is all the x values. C has 8 twice, so I think it would be D.

anonymous · Answer

okay thanks